"I am Bruno of the Elite Four! Through rigorous training, people and Pokémon can become stronger without limit. I've lived and trained with my Fighting Pokémon! And that will never change! (Player)! We will grind you down with our superior power! Hoo hah!"

Manga

Anime

Bruno obtained this Onix in IL071: To Master the Onixpected!. It went on a rampage for reasons unknown until Bruno found the source of it's pain: A wild Sandslash getting caught between the two rocks. Onix was so grateful that it accepted Bruno as it's partner. This onix has a cross-shaped scar on it's right eye.